| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [prep] a [noun sg] | 3252 |
|
| 2 | [was/were] [not/n't] a [noun sg] | 2113 |
|
| 3 | [not/n't] [prep] a [noun sg] | 1292 |
|
| 4 | [was/were] [not/n't] [prep] [noun sg] | 731 |
|
| 5 | [was/were] [not/n't] [prep] a | 204 |
|
